SMITHSONIAN MISCELLANEOUS COLLECTIONS 



VOLUME 95, NUMBER U 



Hrtbur Jfunb 



INFLUENCE OF PLANETARY CONFIGURATIONS 



UPON THE FREQUENCY OF VISIBLE 



SUN SPOTS 



BY 



FERNANDO SANFORD 



Palo Alto, California 



(Publication' 3 391) 



CITY OF WASHINGTON 



PUBLISHED BY THE SMITHSONIAN INSTITUTION 



JUNE 5. 1936 



